diff mbox series

[v2,1/2] common/cnxk: add support for rte flow item raw

Message ID 20210706104729.1598149-1-psatheesh@marvell.com (mailing list archive)
State Superseded, archived
Delegated to: Jerin Jacob
Headers show
Series [v2,1/2] common/cnxk: add support for rte flow item raw | expand

Checks

Context Check Description
ci/Intel-compilation warning apply issues
ci/iol-testing warning apply patch failure
ci/checkpatch success coding style OK

Commit Message

Satheesh Paul July 6, 2021, 10:47 a.m. UTC
From: Satheesh Paul <psatheesh@marvell.com>

Add roc API for rte_flow_item_raw to parse custom L2 and L3 protocols.

Signed-off-by: Satheesh Paul <psatheesh@marvell.com>
Reviewed-by: Kiran Kumar Kokkilagadda <kirankumark@marvell.com>
---
 drivers/common/cnxk/roc_mbox.h      | 24 ++++++--
 drivers/common/cnxk/roc_nix_ops.c   | 14 +++++
 drivers/common/cnxk/roc_npc.h       | 11 ++++
 drivers/common/cnxk/roc_npc_parse.c | 86 +++++++++++++++++++++++++++--
 drivers/common/cnxk/roc_npc_priv.h  |  9 +--
 drivers/common/cnxk/roc_npc_utils.c |  6 +-
 drivers/common/cnxk/roc_utils.c     |  2 +-
 7 files changed, 136 insertions(+), 16 deletions(-)
diff mbox series

Patch

diff --git a/drivers/common/cnxk/roc_mbox.h b/drivers/common/cnxk/roc_mbox.h
index 9c529d754..b254f005a 100644
--- a/drivers/common/cnxk/roc_mbox.h
+++ b/drivers/common/cnxk/roc_mbox.h
@@ -278,14 +278,28 @@  struct ready_msg_rsp {
 	uint16_t __io rclk_freq; /* RCLK frequency */
 };
 
+enum npc_pkind_type {
+	NPC_RX_VLAN_EXDSA_PKIND = 56ULL,
+	NPC_RX_CHLEN24B_PKIND,
+	NPC_RX_CPT_HDR_PKIND,
+	NPC_RX_CHLEN90B_PKIND,
+	NPC_TX_HIGIG_PKIND,
+	NPC_RX_HIGIG_PKIND,
+	NPC_RX_EXDSA_PKIND,
+	NPC_RX_EDSA_PKIND,
+	NPC_TX_DEF_PKIND,
+};
+
 /* Struct to set pkind */
 struct npc_set_pkind {
 	struct mbox_msghdr hdr;
-#define ROC_PRIV_FLAGS_DEFAULT BIT_ULL(0)
-#define ROC_PRIV_FLAGS_EDSA    BIT_ULL(1)
-#define ROC_PRIV_FLAGS_HIGIG   BIT_ULL(2)
-#define ROC_PRIV_FLAGS_LEN_90B BIT_ULL(3)
-#define ROC_PRIV_FLAGS_CUSTOM  BIT_ULL(63)
+#define ROC_PRIV_FLAGS_DEFAULT	  BIT_ULL(0)
+#define ROC_PRIV_FLAGS_EDSA	  BIT_ULL(1)
+#define ROC_PRIV_FLAGS_HIGIG	  BIT_ULL(2)
+#define ROC_PRIV_FLAGS_LEN_90B	  BIT_ULL(3)
+#define ROC_PRIV_FLAGS_EXDSA	  BIT_ULL(4)
+#define ROC_PRIV_FLAGS_VLAN_EXDSA BIT_ULL(5)
+#define ROC_PRIV_FLAGS_CUSTOM	  BIT_ULL(63)
 	uint64_t __io mode;
 #define PKIND_TX BIT_ULL(0)
 #define PKIND_RX BIT_ULL(1)
diff --git a/drivers/common/cnxk/roc_nix_ops.c b/drivers/common/cnxk/roc_nix_ops.c
index eeb85a54f..0e28302e7 100644
--- a/drivers/common/cnxk/roc_nix_ops.c
+++ b/drivers/common/cnxk/roc_nix_ops.c
@@ -378,6 +378,8 @@  roc_nix_switch_hdr_set(struct roc_nix *roc_nix, uint64_t switch_header_type)
 	    switch_header_type != ROC_PRIV_FLAGS_EDSA &&
 	    switch_header_type != ROC_PRIV_FLAGS_HIGIG &&
 	    switch_header_type != ROC_PRIV_FLAGS_LEN_90B &&
+	    switch_header_type != ROC_PRIV_FLAGS_EXDSA &&
+	    switch_header_type != ROC_PRIV_FLAGS_VLAN_EXDSA &&
 	    switch_header_type != ROC_PRIV_FLAGS_CUSTOM) {
 		plt_err("switch header type is not supported");
 		return NIX_ERR_PARAM;
@@ -399,6 +401,18 @@  roc_nix_switch_hdr_set(struct roc_nix *roc_nix, uint64_t switch_header_type)
 	if (req == NULL)
 		return rc;
 	req->mode = switch_header_type;
+
+	if (switch_header_type == ROC_PRIV_FLAGS_LEN_90B) {
+		req->mode = ROC_PRIV_FLAGS_CUSTOM;
+		req->pkind = NPC_RX_CHLEN90B_PKIND;
+	} else if (switch_header_type == ROC_PRIV_FLAGS_EXDSA) {
+		req->mode = ROC_PRIV_FLAGS_CUSTOM;
+		req->pkind = NPC_RX_EXDSA_PKIND;
+	} else if (switch_header_type == ROC_PRIV_FLAGS_VLAN_EXDSA) {
+		req->mode = ROC_PRIV_FLAGS_CUSTOM;
+		req->pkind = NPC_RX_VLAN_EXDSA_PKIND;
+	}
+
 	req->dir = PKIND_RX;
 	rc = mbox_process_msg(mbox, (void *)&rsp);
 	if (rc)
diff --git a/drivers/common/cnxk/roc_npc.h b/drivers/common/cnxk/roc_npc.h
index 2c0a536c9..bab25fd72 100644
--- a/drivers/common/cnxk/roc_npc.h
+++ b/drivers/common/cnxk/roc_npc.h
@@ -36,6 +36,7 @@  enum roc_npc_item_type {
 	ROC_NPC_ITEM_TYPE_CPT_HDR,
 	ROC_NPC_ITEM_TYPE_L3_CUSTOM,
 	ROC_NPC_ITEM_TYPE_QINQ,
+	ROC_NPC_ITEM_TYPE_RAW,
 	ROC_NPC_ITEM_TYPE_END,
 };
 
@@ -47,6 +48,16 @@  struct roc_npc_item_info {
 	const void *last; /* For range */
 };
 
+struct roc_npc_flow_item_raw {
+	uint32_t relative : 1; /**< Look for pattern after the previous item. */
+	uint32_t search : 1;   /**< Search pattern from offset. */
+	uint32_t reserved : 30; /**< Reserved, must be set to zero. */
+	int32_t offset;		/**< Absolute or relative offset for pattern. */
+	uint16_t limit;		/**< Search area limit for start of pattern. */
+	uint16_t length;	/**< Pattern length. */
+	const uint8_t *pattern; /**< Byte string to look for. */
+};
+
 #define ROC_NPC_MAX_ACTION_COUNT 12
 
 enum roc_npc_action_type {
diff --git a/drivers/common/cnxk/roc_npc_parse.c b/drivers/common/cnxk/roc_npc_parse.c
index d07f91db3..8125035dd 100644
--- a/drivers/common/cnxk/roc_npc_parse.c
+++ b/drivers/common/cnxk/roc_npc_parse.c
@@ -136,14 +136,46 @@  npc_parse_la(struct npc_parse_state *pst)
 	return npc_update_parse_state(pst, &info, lid, lt, 0);
 }
 
+static int
+npc_flow_raw_item_prepare(const struct roc_npc_flow_item_raw *raw_spec,
+			  const struct roc_npc_flow_item_raw *raw_mask,
+			  struct npc_parse_item_info *info, uint8_t *spec_buf,
+			  uint8_t *mask_buf)
+{
+	uint32_t custom_hdr_size = 0;
+
+	memset(spec_buf, 0, NPC_MAX_RAW_ITEM_LEN);
+	memset(mask_buf, 0, NPC_MAX_RAW_ITEM_LEN);
+	custom_hdr_size = raw_spec->offset + raw_spec->length;
+
+	memcpy(spec_buf + raw_spec->offset, raw_spec->pattern,
+	       raw_spec->length);
+
+	if (raw_mask->pattern) {
+		memcpy(mask_buf + raw_spec->offset, raw_mask->pattern,
+		       raw_spec->length);
+	} else {
+		memset(mask_buf + raw_spec->offset, 0xFF, raw_spec->length);
+	}
+
+	info->len = custom_hdr_size;
+	info->spec = spec_buf;
+	info->mask = mask_buf;
+
+	return 0;
+}
+
 int
 npc_parse_lb(struct npc_parse_state *pst)
 {
 	const struct roc_npc_item_info *pattern = pst->pattern;
 	const struct roc_npc_item_info *last_pattern;
+	const struct roc_npc_flow_item_raw *raw_spec;
+	uint8_t raw_spec_buf[NPC_MAX_RAW_ITEM_LEN];
+	uint8_t raw_mask_buf[NPC_MAX_RAW_ITEM_LEN];
 	char hw_mask[NPC_MAX_EXTRACT_HW_LEN];
 	struct npc_parse_item_info info;
-	int lid, lt, lflags;
+	int lid, lt, lflags, len = 0;
 	int nr_vlans = 0;
 	int rc;
 
@@ -221,13 +253,35 @@  npc_parse_lb(struct npc_parse_state *pst)
 		info.len = pst->pattern->size;
 		lt = NPC_LT_LB_STAG_QINQ;
 		lflags = NPC_F_STAG_CTAG;
+	} else if (pst->pattern->type == ROC_NPC_ITEM_TYPE_RAW) {
+		raw_spec = pst->pattern->spec;
+		if (raw_spec->relative)
+			return 0;
+		len = raw_spec->length + raw_spec->offset;
+		if (len > NPC_MAX_RAW_ITEM_LEN)
+			return -EINVAL;
+
+		if (pst->npc->switch_header_type == ROC_PRIV_FLAGS_VLAN_EXDSA) {
+			lt = NPC_LT_LB_VLAN_EXDSA;
+		} else if (pst->npc->switch_header_type ==
+			   ROC_PRIV_FLAGS_EXDSA) {
+			lt = NPC_LT_LB_EXDSA;
+		} else {
+			return -EINVAL;
+		}
+
+		npc_flow_raw_item_prepare((const struct roc_npc_flow_item_raw *)
+						  pst->pattern->spec,
+					  (const struct roc_npc_flow_item_raw *)
+						  pst->pattern->mask,
+					  &info, raw_spec_buf, raw_mask_buf);
+
+		info.hw_hdr_len = 0;
 	} else {
 		return 0;
 	}
 
 	info.hw_mask = &hw_mask;
-	info.spec = NULL;
-	info.mask = NULL;
 	npc_get_hw_supp_mask(pst, &info, lid, lt);
 
 	rc = npc_parse_item_basic(pst->pattern, &info);
@@ -340,9 +394,12 @@  npc_check_lc_ip_tunnel(struct npc_parse_state *pst)
 int
 npc_parse_lc(struct npc_parse_state *pst)
 {
+	const struct roc_npc_flow_item_raw *raw_spec;
+	uint8_t raw_spec_buf[NPC_MAX_RAW_ITEM_LEN];
+	uint8_t raw_mask_buf[NPC_MAX_RAW_ITEM_LEN];
 	uint8_t hw_mask[NPC_MAX_EXTRACT_HW_LEN];
 	struct npc_parse_item_info info;
-	int lid, lt;
+	int lid, lt, len = 0;
 	int rc;
 
 	if (pst->pattern->type == ROC_NPC_ITEM_TYPE_MPLS)
@@ -378,6 +435,26 @@  npc_parse_lc(struct npc_parse_state *pst)
 		lt = NPC_LT_LC_CUSTOM0;
 		info.len = pst->pattern->size;
 		break;
+	case ROC_NPC_ITEM_TYPE_RAW:
+		raw_spec = pst->pattern->spec;
+		if (!raw_spec->relative)
+			return 0;
+
+		len = raw_spec->length + raw_spec->offset;
+		if (len > NPC_MAX_RAW_ITEM_LEN)
+			return -EINVAL;
+
+		npc_flow_raw_item_prepare((const struct roc_npc_flow_item_raw *)
+						  pst->pattern->spec,
+					  (const struct roc_npc_flow_item_raw *)
+						  pst->pattern->mask,
+					  &info, raw_spec_buf, raw_mask_buf);
+
+		lid = NPC_LID_LC;
+		lt = NPC_LT_LC_NGIO;
+		info.hw_mask = &hw_mask;
+		npc_get_hw_supp_mask(pst, &info, lid, lt);
+		break;
 	default:
 		/* No match at this layer */
 		return 0;
@@ -388,6 +465,7 @@  npc_parse_lc(struct npc_parse_state *pst)
 
 	npc_get_hw_supp_mask(pst, &info, lid, lt);
 	rc = npc_parse_item_basic(pst->pattern, &info);
+
 	if (rc != 0)
 		return rc;
 
diff --git a/drivers/common/cnxk/roc_npc_priv.h b/drivers/common/cnxk/roc_npc_priv.h
index 484c3aeb1..5b884e3fd 100644
--- a/drivers/common/cnxk/roc_npc_priv.h
+++ b/drivers/common/cnxk/roc_npc_priv.h
@@ -5,10 +5,11 @@ 
 #ifndef _ROC_NPC_PRIV_H_
 #define _ROC_NPC_PRIV_H_
 
-#define NPC_IH_LENGTH	  8
-#define NPC_TPID_LENGTH	  2
-#define NPC_HIGIG2_LENGTH 16
-#define NPC_COUNTER_NONE  (-1)
+#define NPC_IH_LENGTH	     8
+#define NPC_TPID_LENGTH	     2
+#define NPC_HIGIG2_LENGTH    16
+#define NPC_MAX_RAW_ITEM_LEN 16
+#define NPC_COUNTER_NONE     (-1)
 
 #define NPC_RSS_GRPS 8
 
diff --git a/drivers/common/cnxk/roc_npc_utils.c b/drivers/common/cnxk/roc_npc_utils.c
index 5c97588e6..5fcb56c35 100644
--- a/drivers/common/cnxk/roc_npc_utils.c
+++ b/drivers/common/cnxk/roc_npc_utils.c
@@ -130,7 +130,8 @@  npc_parse_item_basic(const struct roc_npc_item_info *item,
 	}
 
 	/* We have valid spec */
-	info->spec = item->spec;
+	if (item->type != ROC_NPC_ITEM_TYPE_RAW)
+		info->spec = item->spec;
 
 	/* If mask is not set, use default mask, err if default mask is
 	 * also NULL.
@@ -140,7 +141,8 @@  npc_parse_item_basic(const struct roc_npc_item_info *item,
 			return NPC_ERR_PARAM;
 		info->mask = info->def_mask;
 	} else {
-		info->mask = item->mask;
+		if (item->type != ROC_NPC_ITEM_TYPE_RAW)
+			info->mask = item->mask;
 	}
 
 	/* mask specified must be subset of hw supported mask
diff --git a/drivers/common/cnxk/roc_utils.c b/drivers/common/cnxk/roc_utils.c
index 542252fe4..9cb8708a7 100644
--- a/drivers/common/cnxk/roc_utils.c
+++ b/drivers/common/cnxk/roc_utils.c
@@ -113,7 +113,7 @@  roc_error_msg_get(int errorcode)
 		err_msg = "NPC invalid spec";
 		break;
 	case NPC_ERR_INVALID_MASK:
-		err_msg = "NPC  invalid mask";
+		err_msg = "NPC invalid mask";
 		break;
 	case NPC_ERR_INVALID_KEX:
 		err_msg = "NPC invalid key";